Apparatus and method for generating pulsating noise in audio device

Abstract

An apparatus and method for generating pulsating noise in an audio device are provided. The apparatus and method mix audio signals processed by an audio play operation with pulsating noise generated by a pulsating noise generator if a brain wave induction mode is set in an audio device and output a result of the mixing operation through wired or wireless speaker. Therefore, a user can efficiently experience brain wave induction action based on the pulsating noise while he/she hears audio from the speaker.

1. An apparatus for generating pulsating noise in an audio device, comprising:
 an audio signal processor configured to provide an audio signal from a DVD; 
 a pulsating noise generator configured to generate pulsating noise at a predetermined frequency; and 
 a mixing device that mixes the audio signal from the audio signal processor with the pulsating noise from the pulsating noise generator and provides the mixed output signal. 
 
   
   
     2. The apparatus as set forth in  claim 1 , wherein the pulsating noise generator is further configured to generate various sound sources. 
   
   
     3. The apparatus as set forth in  claim 1 , wherein the pulsating noise generator is mounted within a communication transmission module. 
   
   
     4. The apparatus as set forth in  claim 3 , wherein the communication transmission module comprises a local area wireless transmission module. 
   
   
     5. The apparatus as set forth in  claim 3 , wherein the pulsating noise generator is controlled by a user input through an input device. 
   
   
     6. The apparatus as set forth in  claim 3 , further comprising a controller configured to control operation of the pulsating noise generator based on a user request. 
   
   
     7. An audio device comprising:
 an audio signal processor configured to provide an audio signal from a DVD; 
 a pulsating noise generator configured to generate pulsating noise at a predetermined frequency; and 
 a mixing device that mixes the audio signal from the audio signal processor with the pulsating noise from the pulsating noise generator and provides the mixed output signal. 
 
   
   
     8. A DVD player comprising an audio device including:
 an audio signal processor configured to provide an audio signal from a DVD; 
 a pulsating noise generator configured to generate pulsating noise at a predetermined frequency; and 
 a mixing device that mixes the audio signal from the audio signal processor with the pulsating noise from the pulsating noise generator and provides the mixed output signal. 
 
   
   
     9. A method for generating pulsating noise in an audio device, comprising:
 determining, by a controller, whether an audio play operation is requested; 
 determining, by the controller, whether a brain wave induction mode is set; 
 providing an audio signal from a DVD when the audio play operation is requested; 
 generating pulsating noise when the brain wave induction mode is set; and 
 mixing the pulsating noise with the audio signal from the DVD to provide an output signal. 
 
   
   
     10. The method as set forth in  claim 9 , further comprising:
 receiving a user request via an input device; and 
 confirming the user request before the determinings. 
 
   
   
     11. The method as set forth in  claim 9 , further comprising:
 generating pulsating noises and/or specific sound sources selected by a user, when the brain wave induction operation is requested. 
 
   
   
     12. The method as set forth in  claim 9 , wherein the method is implemented in an audio device of a DVD player. 
   
   
     13. An apparatus comprising:
 a device to provide an audio signal from a DVD; 
 a pulsating noise generator to generate pulsating noise at a predetermined frequency, the pulsating noise being designed to induce a brain wave of a user corresponding to the predetermined frequency; 
 a device to combine the audio signal and the pulsating noise and provide an output signal; and 
 an electronic communication device that provides electronic communication of the output signal from the apparatus. 
 
   
   
     14. The apparatus as set forth in  claim 13 , wherein the electronic communication device comprises a wireless communication device to wirelessly transmit the output signal from the apparatus. 
   
   
     15. The method as set forth in  claim 11 , wherein generating pulsating noises and/or specific sound sources selected by the user, when the brain wave induction operation is requested comprises concurrently generating pulsating noises and specific sound sources selected by the user, when the brain wave induction operation is requested. 
   
   
     16. An audio device comprising:
 a device to provide an audio signal from a DVD; 
 a pulsating noise generator to generate pulsating noise at a predetermined frequency, the pulsating noise being designed to induce a brain wave of a user corresponding to the predetermined frequency; 
 a device to combine the audio signal and the pulsating noise and provide an output signal; and 
 an electronic communication device that provides electronic communication of the output signal from the apparatus. 
 
   
   
     17. A DVD player comprising an audio device including:
 a device to provide an audio signal from a DVD; 
 a pulsating noise generator to generate pulsating noise at a predetermined frequency, the pulsating noise being designed to induce a brain wave of a user corresponding to the predetermined freguency; 
 a device to combine the audio signal and the pulsating noise and provide an output signal; and 
 an electronic communication device that provides electronic communication of the output signal from the apparatus. 
 
   
   
     18. The apparatus as set forth in  claim 1 , further comprising a speaker to output the mixed output signal. 
   
   
     19. The apparatus as set forth in  claim 1 , further comprising a transmission unit to wirelessly transmit the mixed output signal. 
   
   
     20. The method as set forth in  claim 9 , further comprising a speaker to output the output signal from the audio device. 
   
   
     21. The method as set forth in  claim 9 , further comprising a transmission unit to wirelessly transmit the output signal from the audio device.